Tension-pulley.



H. G. BEEDE.

TENSION PULLEY.

APPLICATION FILED 13110.19, 1.911.

' Patented Feb. 10, 1914.

Wan/1.02am Emma -Q)Dbomuzn UFTITED STAIES PATENT OFFIE HERBERT G. BEEDE, OF PAWTUCKET, RHODE ISLAND.

TENSION-PULLEY.

Application filed December 19, 1911.

To all whom it may concern Be it known that I, HERBERT G. BEEDE, a citizen of the United States, residing at Pawtucket, in the county of Providence and 5 State of Rhode Island, have invented certain new and useful Improvements in Ten sion-Pulleys, of which the following is a specification.

My invention relates to a belt tension pulley, as ordinarily used on twisting or spinning machines, on which the driving belt for the spindles, which passes from the driving drum around an intermediate pulley, is yieldingly held in engagement with the whirls on the spindles, by the action of a weight, or similar device.

The object of my invention is to improve upon the tension mechanism on a belt tension pulley of the class above referred to, and more particularly to provide a belt tension mechanism which can be readily assembled and taken apart, without the employment of any bolts or screws for connecting the parts, and on which the bearings for the journal of the belt pulley are detachable, and the caps or covers for said bearings are held in place without the employment of any bolts or screws, and are detachable and removable when desired, and in which the weighted lever, which moves the slide carrying the belt pulley, is disconnected from said slide, and movable independently thereof, and adapted to engage said slide to move the same, so that said slide can be moved, and removed or detached, independently of said weighted lever, and said weighted lever can be moved, or removed or detached, independently of said slide. And further, said slide is provided with engaging lugs to extend under the stationary ways or guide bars on the frame on which it slides, to hold said slide in place thereon, and at the same time allow the free removal of said slide over the ends of said bars.

My invention consists in certain novel features of construction of my improvements, as will be hereinafter fully described.

I have shown in the drawing a tension mechanism of my improved construction combined with a belt pulley, sufiicient to enable those skilled in the art to understand the construction and operation thereof.

I have not shown in the drawing any of the parts of a twisting or spinning machine in connection with which my tension pulley Specification of Letters Patent.

Patented Feb. 10, 1914.

Serial No. 666,683.

is used, as the same may be of the ordinary and well known construction.

Referring to the drawing :Figure 1 is a side view of my improved mechanism and a belt pulley, with some of the parts shown in section. Fig. 2 is a section, on line 2, 2, Fig. 1, looking in the direction of arrow a, same figure. Fig. 3 is a plan view of the parts shown in Fig. 1, looking in the direction of arrow 6, same figure; the belt is not shown in this figure. Fig. 4 is a section, on line 4, 4:, Fig. 1, looking in the direction of arrow 0, same figure, and, Fig. 5

is a detached View of the bearing, shown at the left in Fig. 1.

In the accompanying drawing, 1 is a stand or bracket, which with the lower curved shaped portion 1, is adapted to be adjustably secured upon a girt or frame of a spinning or twisting machine. The curved shaped portion 1 enables the stand tobe secured upon the girt in an inclined position as desired, to assure the proper running of the belt. The stand 1 is in this instance U shape, seeFigs. 2 and 4, with two arms 1 extending horizontally therefrom, to form a support for the pulley frame, see Figs. 1 and 3. The pulley frame consists of a sliding support 2, with two horizontally extending arms, wh ch extend upon the arms 1", and is prevented from moving upwardly by lugs 2 extending below the edges of the arms 1, see Fig. 2.

At one end the arms 2 are rigidly connected by the transverse portion 2", see Fig. 3, which in this instance is recessed on its lower side, and has a flange 2" extending downwardly, and adapted to be engaged by the hooked end 3 of the weighted arm or lever 3, see Fig. 1, which arm has its hub 3 pivotally mounted on a stud i on the stand 1.

The weighted arm 3 is provided with a heavy weighted portion 3, which extends outwardly from the hub 3, and acts to move the slide 2 toward the right in Fig. 1, to apply tension to the belt 8 passing around the pulley 7 The slide 2 is free to slide back and forth on the supporting arms 1 on the frame 1, and is not attached to said arms, but is held in place by means of the lugs 2 extending under the arms 1, and the slide 2 is detached from the arms 1" by moving said slide 2 thereon until the lugs 2 pass by the outer ends of said arms.

The weighted arm 3, which engages and moves the slide 2 in one direction, to tighten the belt 8 on the pulley 7, is not connected with said slide 2, but is movable independently thereof, and by raising its weighted end, is moved out of the path of the transverse bar 2 on said slide 2, to allow of the removal of said slide.

The arms 2 of the guiding frame are provided with open bearings 2, for the removable blocks 5, preferably of wood, see Fig. 5,- which form the bearings for the journal 6 of the pulley 7, see Fig. 2, around which pulley the belt 8 passes, for the driving and driven parts, not shown.

Bars 9, which are provided at one end with a cover or cap portions 9, see Fig. 3, are adapted to hold the bearing blocks 5 in position. A projection 9 on the caps 9 extends below a lug 2* on each bar 2, and acts to hold downwardly the caps 9, see Fig. 1. By means of the projections 9 on the caps 9 on the bars 9, extending under the lugs 2 on the support 2, the bearing blocks 5 are held rigidly in position, without the employment of any bolts or screws.

The transverse portion or bar 9' which connects the side bars 9 at their outer ends, 13.8 in this instance secured thereto, the ends of the holding or locking wire 10, see Fig. l, which wire extends upwardly and is curved or bow shaped to extend under and engage the notched portion on a projection 2 on the slide 2, see Fig. 1. By pressing inwardly the spring 10 toward the transverse portion or bar 9, said bar 9' and side bars 9 are free to be raised, and also the covers 9 over the bearing blocks 5, so that said blocks 5' and the pulley 7 can be readily removed to put on, or remove the belt 8.

The advantages of my improved construction of belt tension mechanism will be readily appreciated by those skilled in the art.

The several parts may be of cast metal, and are readily assembled or taken apart without the employment of any screws or bolts. The separate bearing blocks for the pulley may be made of wood, oil soaked, or otherwise, and are readily placed in position or removed without the use of any screws or bolts.

ing a cap portion extending over said bearings, and a pro ection extendmg under a lug on said slide, to hold said cap portions in place, and allow of the free removal thereof.

2. An automatic tension pulley mechanism, comprising a slide carrying removable bearings for a belt pulley, and said belt pul ley, said slide supported on a stationary frame to move longitudinally thereon, and means for moving said slide, and removable bars supported on said slide, each bar having a cap portion extending over said bearings, and a projection extending under a lug oncsaid slide, to hold said cap portions in place, and allow of the free removal thereof,

and means for holding or locking said bars in operative position, without the employment of any screws or bolts, said means permitting of the ready removalof said bars.

3. An automatic tension pulley mechanism, comprising a slide carrying removable bearings for a belt pulley, and said belt pulley, said slide supported on a stationary frame to move longitudinally thereon, and means for moving said slide, and removable bars supported on said slide, each bar havin a cap portion extending over said bearings, and a projection extending under a lug on said slide, to hold said cap portions in place and allow of the free removal thereof, and means for holding or locking said bars in operative position, said means comprising a spring or yielding device at the detached ends of said bars, adapted to engage with a part of said slide.

HERBERT G. BEEDE.

Witnesses FREDERICK M. ARMs'rRoNG, HERBERT J. SUTTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

